void xk9(int x) {
__ char a[10];
__ int i=0,rem;
__ do {
__ rem=x%8; x=x/8;
__ a[i]=48+rem;__ //.0.字符的ASCII码为48
__ __i++;
__ } while(x!=0);
__ while(i>0) printf("%c",a[--i]);
__ printf("\n");
} 答案：1 (填空题)